Monitor disk space for backups and restores using dashboard widgets and alerts. Observe the Current Data Size of backups
and the Storage Capacity dashboard widget to anticipate disk space requirements. Take advantage of the Capacity Service
to anticipate capacity based on disk usage or other metrics. Add a free or used disk space alert to send notifications
when disk space becomes compromised.

Monitoring sufficient disk space for restoring backups

Monitor disk space for backups and restores using dashboard widgets and alerts.
Observe the Current Data Size of backups and the Storage Capacity dashboard widget to
anticipate disk space requirements. Take advantage of the Capacity Service to anticipate
capacity based on disk usage or other metrics. Add a free or used disk space alert to send
notifications when disk space becomes compromised.

Before downloading a snapshot from a destination to use for a restore, OpsCenter (as
of version 6.0.9 or later) verifies whether each node has sufficient disk space required
for the download. The disk space check looks up the partition for the agent
tmp_dir and verifies there is sufficient space on that partition.
If necessary, change the agent download directory using tmp_dir in
address.yaml. Attempting a restore to a location with
insufficient disk space fails. The Restore Report indicates which nodes do not have
sufficient space and how much space is necessary on each for a successful restore.

Tip: When creating a backup, the Create Backup dialog
dynamically displays the size of the selected data to back up in the
Current Data Size field.

address.yaml

The location of the address.yaml
file depends on the type of installation:

Package installations:
/var/lib/datastax-agent/conf/address.yaml

Tarball installations:
install_location/conf/address.yaml

Storage Capacity Widget

Monitor free disk space for backups and restores by observing the Storage
Capacity widget in the Dashboard. The
Storage Capacity widget is enabled by default in the
Dashboard. When storage capacity becomes limited, add
capacity or clear space as necessary.

Note: Monitoring disk space for restoring
backups assumes the tmp_dir resides on the same partition as
the backup data.

Free and Used Disk Space Alerts

Add the Free Disk Space alert to notify you when free disk space
goes below an acceptable threshold for an environment. Click Alerts > Advanced > System > System Free Disk Space from the Notify me when menu. You could also
set up a Used Disk Space (GB) alert.

Note: Alerting about disk space for restoring backups assumes the
tmp_dir resides on the same partition as the backup
data.

Configure Backup Service options in the OpsCenter UI such as commitlog backup location, available disk space thresholds,
and encryption key storage. Configure other options that effect the Backup Service, such as agent configurations for uploading
extremely large files or continuing restores after a download failure.

Monitor disk space for backups and restores using dashboard widgets and alerts. Observe the Current Data Size of backups
and the Storage Capacity dashboard widget to anticipate disk space requirements. Take advantage of the Capacity Service
to anticipate capacity based on disk usage or other metrics. Add a free or used disk space alert to send notifications
when disk space becomes compromised.

Using trend analysis and forecasting, the Capacity Service helps you understand cluster performance within its current environment
and workload, and gain a better sense of how time affects those trends, both past and future.

The OpsCenter Performance Service combines OpsCenter metrics with CQL-based diagnostic tables populated by the DSE Performance
Service to help understand, tune, and optimize cluster performance. Visually enable the performance objects and analyze
the results within OpsCenter.

DataStax is a registered trademark of DataStax, Inc. and its subsidiaries in the United States and/or other countries.

Apache Cassandra, Apache, Tomcat, Lucene, Solr, Hadoop, Spark, TinkerPop, and Cassandra are trademarks of the Apache Software Foundation or its subsidiaries in Canada, the United States and/or other countries.